The calculated distance (air line) between Falkenhagener Feld and Charlottenburg-Nord is approximately 5 miles respectively 9 kilometers.
By car or train, the actual journey to Charlottenburg-Nord is certainly longer, as only the direct route (as the crow flies) between Falkenhagener Feld and Charlottenburg-Nord has been calculated here.
Air line (approximately)
9 kilometers
5 nautical miles